Can Scooby and the gang save the greatest show on earth? Mystery, Inc.’s own Fred Jones has always dreamed of performing death-defying acrobatics under the big top. So when the Brancusi Circus comes to town, he leaps at the chance to check it out. The circus ringleader is desperate for the gang’s help. A werewolf has been terrorising the performers and stealing jewelry from the audience members. Now it’s up to Scooby and the gang to solve this mystical mystery.